Find and replace automator in Word

The Automator integration with Word 2008 is very useful, but I've discovered a snag I'd like to find a workaround for. I'm using Mac OS 10.5.5.

I want to find and replace all the text in Word documents I create, including the footnotes, headers, and footers, but the 'Find and Replace Text in Word Documents' Automator action will only find and replace in the main body. This severely limits its functionality. Is there any way I can get round this?

I'm happy to use an Apple Script if this would do the job more effectively, but don't know the required code. I used to have this function working fine with macros in previous versions of Word, but I'm stumped by the new version.

Thanks in advance for any help you can offer.